Description
Product Overview
Top-tier redundant safety central processing unit module certified up to SIL 4 functional safety level for critical high-risk process safety instrumented systems. Executes safety logic programming, multi-module I/O rack communication, remote SCADA telemetry, and real-time safety voting algorithms for large-scale plant ESD, fire & gas, and burner management safety systems. H6200A is the enhanced high-memory variant of base H6200 model.
Technical Specifications
- Functional Safety Certification Rating: SIL 4 (IEC 61508 / IEC 61511 TÜV certified)
- Processor Architecture: Dual independent lockstep redundant multi-core safety processors
- Onboard Operating RAM: 512 MB DDR3 industrial wide-temperature memory
- Non-Volatile Program Flash Storage: 128 MB industrial grade fault-tolerant flash memory
- Maximum Supported System Safety I/O Points: 4096 discrete safety input/output points per CPU
- Expansion I/O Rack Capacity: Up to 64 digital/analog safety I/O modules per controller rack
- Onboard Communication Interfaces: 2×10/100 Mbps Ethernet, 2×RS485 isolated serial, USB 2.0 configuration port
- Supported Industrial Protocols: PROFIBUS DP, Modbus TCP/RTU, HART, OPC UA Safety
- Maximum Safety Logic Response Time: <5 ms typical full-system trip latency
- Module Nominal Supply Voltage: 24 VDC operating range 20–30 VDC
- Maximum Power Consumption: 20 W full-load continuous operation
- Diagnostic Fault Coverage Rate: >99% all internal and external system faults
- MTTFd Mean Time To Dangerous Failure: >100 years
- Operating Temperature Range: -20 °C to +70 °C
- Storage Temperature Range: -40 °C to +85 °C
- Mounting Format: Standard HIMax rack pluggable CPU card
Material Composition
- Main Safety PCB: High-isolation FR4 high-Tg laminate with double redundant trace routing
- Processor Semiconductors: Extended industrial temperature range lockstep CPU chips
- Enclosure Housing: Impact-resistant UL94-V0 polycarbonate rack card frame
- Communication Port Connectors: Shielded metal shell industrial Ethernet/RS485 connectors
- Flash Memory Chips: Single-bit error correction industrial non-volatile storage components
Structural Characteristics
- Hot-swappable rack pluggable CPU card design for live redundant system maintenance
- Dual independent Ethernet communication channels for redundant SCADA network architecture
- Front panel multi-color LED status array for power, run, fault, safety trip, and communication health indication
- Isolated internal power regulation zones separating safety logic and external communication circuits
- Backplane multi-drop bus interface supporting cross-rack redundant CPU hot-backup pairing
Working Principle
Dual lockstep redundant safety processors execute identical safety logic programs in parallel, continuously comparing all internal calculation results via cross-monitoring diagnostic circuits. Any single processor calculation mismatch triggers an immediate safety system trip and fault isolation of the defective core. The CPU manages bidirectional communication with all connected HIMax safety I/O modules, performing real-time voting on all safety input signal states to eliminate field wiring single-point faults. Isolated Ethernet and serial communication buses transmit safety system alarm, trend, and diagnostic data to upper plant SCADA control systems while maintaining electrical isolation between safety and non-safety plant control networks. All safety program logic is stored in fault-tolerant dual-redundant flash memory to prevent program corruption under power transient conditions.
Function & Feature Highlights
- SIL 4 TÜV certified dual lockstep redundant architecture for highest-risk industrial process safety applications
- Support for up to 4096 total safety I/O points enabling full plant-scale integrated SIS safety systems
- Dual isolated Ethernet communication ports for redundant fault-tolerant plant supervisory data exchange
- Built-in HART protocol master interface for intelligent safety valve and transmitter diagnostic data collection
- Complete internal and external system fault logging with timestamped safety trip event archive
- Hot-backup redundant CPU pairing supporting seamless faultless switchover between primary and standby H6200A modules
Core Advantages
- SIL 4 maximum functional safety rating compliant with nuclear, petrochemical, and refinery high-risk process safety standards
-
99% full-system diagnostic coverage eliminates undetectable dangerous component faults
- Large 512 MB RAM / 128 MB flash memory capacity for complex multi-loop safety logic programming
- Dual redundant communication channels prevent complete telemetry loss during single network cable fault
- Wide -20 °C to +70 °C operating temperature compatible with outdoor unheated safety control cabinets
Applicable Industries
Nuclear power plant reactor protection systems, large-scale refinery emergency shutdown (ESD) safety systems, chemical plant toxic hazard process interlock systems, liquefied natural gas (LNG) terminal fire & gas safety control, power plant boiler burner management safety systems, offshore oil platform process safety instrumented systems
Installation Requirements
- Installed exclusively in dedicated primary/backup CPU rack slots of HIMax safety system backplane
- Minimum 30 mm rear cabinet clearance for rack card forced convection cooling airflow
- Safety network Ethernet wiring must use Class A shielded industrial cable separated from non-safety control network cabling
- Dual redundant 24 VDC power supply feeds mandatory for full SIL 4 fault-tolerant compliance
- USB configuration port only connected during offline programming; disconnected during continuous plant operation
Usage Precautions
- Mixing H6200A and base H6200 CPU modules in redundant primary/backup pairs invalidates SIL 4 safety certification
- External communication network overvoltage surges exceeding 30 VDC permanently damage isolated Ethernet interface circuits
- Operating ambient temperature above +70 °C reduces diagnostic fault coverage rate below SIL 4 compliance threshold
- Annual full SIS safety loop proof testing required per IEC 61511 process safety regulatory standards
- Safety program modification requires complete re-validation and TÜV traceable documentation retention
Reviews
There are no reviews yet.